Catch KeyError in the validator, because KeyError seems to be caught and...

Catch KeyError in the validator, because KeyError seems to be caught and ignored at somewhere, and disappear on the screen. So it is translated into ValidationError somehow. Typically, this error happens when there is any editable column which does not appear in columns.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@32492 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Form/ListBox.py

@@ -2545,6 +2545,8 @@ class ListBoxListRenderer(ListBoxRenderer):
 
 class ListBoxValidator(Validator.Validator):
     property_names = Validator.Validator.property_names
+    message_names = Validator.Validator.message_names + ['required_not_found']
+    required_not_found = 'Input is required but no input given.'
 
     def validate(self, field, key, REQUEST):
         form = field.aq_parent
@@ -2660,6 +2662,10 @@ class ListBoxValidator(Validator.Validator):
                     #LOG("ListBox ValidationError",0,str(err))
                     err.field_id = error_result_key
                     errors.append(err)
+                  except KeyError:
+                    err = ValidationError('required_not_found', field)
+                    err.field_id = field.id
+                    errors.append(err)
           else:
             # Second case: modification of existing objects
             #try:
@@ -2710,6 +2716,10 @@ class ListBoxValidator(Validator.Validator):
                       #LOG("ListBox ValidationError",0,str(err))
                       err.field_id = error_result_key
                       errors.append(err)
+                    except KeyError:
+                      err = ValidationError('required_not_found', field)
+                      err.field_id = field.id
+                      errors.append(err)
             #except:
             else:
               LOG("ListBox WARNING",0,"Object uid %s could not be validated" % uid)